add pdf artifact

Author: MaxenceGollier

.github/workflows/jsobmarks.yml

@@ -85,9 +85,10 @@ jobs:
           name: jso-benchmarks
           path: |
             profiles_this_commit_vs_reference_*.svg
+            profiles_this_commit_vs_reference_*.pdf
             *_vs_reference_*.jld2
             bmark_*.md
             reference.md
             judgement_*.md
             *_solver_benchmarks_*.jld2
-            *_solver_benchmarks_*.txt
+            *_solver_benchmarks_*.txt